In the equation \(0.4 - 7x = 3\), the constants are the values that do not change (i.e., they are not multiplied by a variable).
The constant terms in this equation are:
- \(0.4\) (the constant on the left side of the equation)
- \(3\) (the constant on the right side of the equation)
Therefore, the correct response is:
0.4 and 3